Siemens Sinumerik 840D sl Diagnostic Manual page 374

Overview of Alarms
NCK alarms
Reaction: Mode group not ready.
The NC switches to follow-up mode.
Channel not ready.
NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Channel not ready.
Remedy: Please inform the authorized personnel/service department. Check machine data for the active,
selected encoders. Check the machine data relating to encoder (MD36510 $MA_ENC_DIFF_TOL)
tolerance.
Program Con- Clear alarm with the RESET key in all channels of this mode group. Restart part program.
tinuation:
25110 Axis %1 selected encoder not available
Parameters: %1 = Axis name, spindle number
Definitions: The selected encoder does not correspond to the maximum number of encoders in the axis-specific
MD30200 $MA_NUM_ENCS, i.e. the 2nd encoder does not exist.
Reaction: Alarm display.
Remedy: Please inform the authorized personnel/service department. Enter the number of actual value encod-
ers used for this axis in the MD30200 $MA_NUM_ENCS ("Number of encoders").
Input value 0: Axis without encoder -> e.g. spindle
Input value 1: Axis with encoder -> default setting
Input value 2: Axis with 2 encoders -> e.g. direct and indirect measuring system
Program Con- Clear alarm with the Delete key or NC START.
tinuation:
25200 Axis %1 requested set of parameters invalid
Parameters: %1 = Axis name, spindle number
Definitions: A new parameter set has been requested for the positioning control. The number of this parameter
set is beyond the permissible limit (8 parameter sets: 0 ... 7 available).
Reaction: NC Start disable in this channel.
Interface signals are set.
Alarm display.
NC Stop on alarm.
Remedy: Please inform the authorized personnel/service department. Check the axis-specific/spindle-specific
interface signals DB31, ... DBX9.0 - .2 (Select parameter set servo A, B, C).
One parameter set includes the following machine data:
- MD31050 $MA_DRIVE_AX_RATIO_DENOM [n]
- MD31060 $MA_DRIVE_AX_RATIO_NUMERA [n]
- MD32200 $MA_POSCTRL_GAIN [n]
- MD32800 $MA_EQUIV_CURRCTRL_TIME [n]
- MD32810 $MA_EQUIV_SPEEDCTRL_TIME [n]
- MD32910 $MA_DYN_MATCH_TIME [n]
- MD36200 $MA_AX_VELO_LIMIT [n]
Program Con- Clear alarm with the RESET key. Restart part program
tinuation:
25201 Axis %1 drive fault
Parameters: %1 = Axis name, spindle number
Definitions: For PROFIdrive:
The drive signals a serious fault which prevents the drive from being ready. The exact cause of the
fault can be found by evaluating the additionally output drive alarms (It may be necessary to activate
these diagnostic alarms by parameterizing the MDs DRIVE_FUNCTION_MASK,
PROFIBUS_ALARM_ACCESS etc):
Alarms 380500 and 380501 (or the corresponding alarm numbers implemented on the HMI side).
The alarm can be reprogrammed in the MD11412 $MN_ALARM_REACTION_CHAN_NOREADY
(channel not ready).
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SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
© Siemens AG, 2009. All Rights Reserved
03/2009